my 2004 jeep grand cherokee overland has dual heat and the driver side is blowing cold air when the passenger side is blowing warm/hot air. can somebody help me figure out what is wrong with it?
it is possible that there is a blend door in the ductwork that isn't working. they have an actuator that can stop working
Yep air blend door problem, most likely the door is broken, there are videos on you tube about Jeep blend doors, you might want to watch them. My 02 Jeep broke it's door so I just replaced it with the kit from EBay, of course it does away with the dual heats mode, looks a lot harder than it is, but a hot knife attachment in your pencil soldering iron really makes it a lot easier.
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